<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <title>纯css实现点点点加载loading</title>
    <meta http-equiv="X-UA-Compatible" content="IE=Edge">
    <meta http-equiv="Cache-Control" content="no-siteapp">
    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"/>
    <meta http-equiv="Pragma" content="no-cache"/>
    <meta http-equiv="Expires" content="0"/>
    <meta name="renderer" content="webkit|ie-comp|ie-stand">
    <meta content="telephone=no" name="format-detection"/>
    <meta name="viewport"
          content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
    <meta name="baidu-site-verification" content="v3r4JDDzPy"/>
    <script src="http://localhost:8081/target/target-script-min.js#anonymous"></script>
    <style>
        dot {
            font-size: 14px;
            display: inline-block;
            height: 1em; line-height: 1;
            text-align: left;
            vertical-align: -.25em;
            overflow: hidden;
        }
        dot::before {
            display: block;
            content: '...\A..\A.';
            white-space: pre-wrap;   /* 也可以是white-space: pre */
            animation: dot 3s infinite step-start both;
        }
        @keyframes dot {
            33% { transform: translateY(-2em); }
            66% { transform: translateY(-1em); }
        }
    </style>
</head>
<body>
<div id="app">
    <h3 style="text-align: center;">纯css实现点点点加载loading<dot>...</dot></h3>

</div>
<script>
</script>
</body>
</html>